素敵なMTCNA試験一回合格-ハイパスレートのMTCNA合格体験談多くの受験者にとって、MTCNA試験資格証明書を取得することは簡単ではないです。MTCNA試験に合格するには、たくさん時間と精力が必要です。しかし、MikroTik MTCNA試験参考書を選ばれば、試験に合格するだけでなく、時間を節約できます。だから、MikroTik MTCNA試験参考書を早く購入しましょう！ MikroTik Certified Network Associate Exam 認定 MTCNA 試験問題 (Q106-Q111):質問 # 106
What layer in the TCP/IP stack is equivalent to the Transport layer of the OSI model?
A. Application
B. Host-to-Host
C. Network Access
D. Internet
正解：B
解説：
In the TCP/IP model (also known as the DoD model), the Host-to-Host layer is responsible for reliable end-to- end communication, which aligns directly with the Transport Layer (Layer 4) of the OSI model. This layer is where TCP and UDP protocols reside.
MTCNA Course Material - Protocol Layers Mapping:
"The Host-to-Host layer in TCP/IP model corresponds to the Transport layer in OSI. It handles reliable delivery through TCP and connectionless communication via UDP." Rene Meneses MTCNA Study Guide - TCP/IP vs OSI:
"Host-to-Host layer = OSI Layer 4. Protocols: TCP, UDP."
Other layers:
* Application # OSI Layers 5-7
* Internet # OSI Layer 3
* Network Access # OSI Layers 1-2
質問 # 107
One host on an internal network is accessing an external web page through a MikroTik router that is doing source NAT. Select correct statement about the packets that flow from that web page to the host ?
A. Packets go through the input chain before the routing decision and after that through output chain
B. Packets go through the output chain
C. Packets go through the input chain
D. Packets go through the forward chain
正解：D
質問 # 108
Which of the following is used in standard 802.11 wireless networks?
A. FDD
B. CDMA
C. CSMA/CD
D. CSMA/CA
正解：D
質問 # 109
What protocol is used for Ping and Trace route?
A. UDP - trace route
B. TCP
C. IP
D. DHCP
E. ICMP - ping
正解：A、E
解説：
Both ping and traceroute are diagnostic tools used to test connectivity and network path behavior. While both use IP as the transport layer, they rely on specific protocols:
* Ping uses ICMP Echo Request and Echo Reply messages.
* Traceroute typically uses UDP packets with increasing TTL (Time-To-Live) values to discover each hop.
On MikroTik devices, ping uses ICMP and traceroute uses UDP by default (though ICMP traceroute is also available in some implementations).
* A. DHCP is unrelated. It's a protocol for IP address assignment.
* B. IP is a network-layer protocol underlying ICMP and UDP, but it's not the specific diagnostic protocol.
* C. TCP is a connection-oriented protocol, not used for ping/traceroute.
* D. Correct. ICMP is the protocol behind ping.
* E. Correct. UDP is used by default in traceroute to trigger ICMP Time Exceeded messages from routers.
Extract from Official MTCNA Course Material - Tools Section:
"Ping uses the ICMP protocol to send Echo Request and receive Echo Reply. Traceroute sends UDP packets with incremented TTL values to discover intermediate hops." Extract from Rene Meneses Study Guide - Diagnostic Tools:
"Traceroute in RouterOS sends UDP packets to a random port. Routers that receive the packet send ICMP Time Exceeded messages back when TTL expires. Ping uses ICMP directly." Extract from MikroTik Wiki - Ping and Traceroute:
"Ping uses ICMP protocol. Traceroute sends UDP packets, increasing TTL by one for each hop."
質問 # 110
What protocol does PPP use to identify the Network layer protocol?